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server.js
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server.js
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// server.js
const express = require("express");
const app = express();
/**
* TODO(developer): Uncomment these variables before running the sample.
*/
// const topicNameOrId = 'YOUR_TOPIC_NAME_OR_ID';
const data = JSON.stringify({foo: 'bar'});
// Imports the Google Cloud client library
const {PubSub} = require('@google-cloud/pubsub');
// Creates a client; cache this for further use
const pubSubClient = new PubSub();
async function publishMessage() {
// Publishes the message as a string, e.g. "Hello, world!" or JSON.stringify(someObject)
const dataBuffer = Buffer.from(data);
try {
const messageId = await pubSubClient
.topic(test-topic)
.publishMessage({data: dataBuffer});
console.log(`Message ${messageId} published.`);
} catch (error) {
console.error(`Received error while publishing: ${error.message}`);
process.exitCode = 1;
}
}
app.get("/user/:id", (req, res) => {
const id = req.params.id;
res.json({
id,
name: `John Doe #${id}`
});
publishMessage();
});
app.listen(8080, () => {
console.log("Server running on port 8080");
});